To create a Plackett-Burman design
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1    Choose Stat > DOE > Factorial > Create Factorial Design.

2    If you want to see a summary of the Plackett-Burman designs, click Display Available Designs. Use this table to compare design features. Click OK.

3    Choose Plackett-Burman design.

4    From Number of factors, choose a number from 2 to 47.

5    Click Designs.

6    From Number of runs, choose the number of runs for your design. This list contains only acceptable numbers of runs based on the number of factors you choose in step 4. (Each design is based on the number of runs, from 12 to 48, and is always a multiple of 4. The number of factors must be less than the number of runs.)

7    If you like, use any of the options in the Design subdialog box .

Even if you do not use any of these options, click OK. This selects the design and brings you back to the main dialog box.

8    If you like, click Options or Factors to use any of the dialog box options, then click OK to create your design.